作者：Ashton Lassiter 3 年以前
64
Six Trigonometric Functions
Trigonometric functions, including sine, cosine, tangent, cotangent, secant, and cosecant, each have unique characteristics that define their behavior. The sine and cosine functions have a domain of all real numbers and a range between -1 and 1.
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Six Trigonometric Functions Cosecant Function : f(x) = csc (x) Inverse: Sin Cotangent Function : f(x) = cot (x) Inverse: Tan x intercepts: x = pi /2 + k pi , where k is an integer. Domain: all real numbers except k pi, k is an integer. Cosine Function : f(x) = cos (x) Inverse: Secant y int: y = 1 x int: x = pi/2 + k pi , where k is an integer. Secant Function : f(x) = sec (x) Inverse: Cosine y intercepts: y = 1 Period = 2 pi Range: (-infinity , -1] U [1 , +infinity) Domain: all real numbers except pi/2 + k pi, n is an integer. Tangent Function : f(x) = tan (x) Inverse: Cotangent y intercepts: y = 0 x intercepts: x = k pi , where k is an integer. Period = pi Range: all real numbers Domain: all real numbers except pi/2 + k pi, k is an integer. Sine Function: f(x)= sin(x) Inverse: Cosecant y-int: y = 0 x-int: x = k pi , where k is an integer. Period = 2pi Range: [-1 , 1] Domain: all real numbers
